baber/WOPTO huggingface dataset:
Patent JP-H01221923-A (JP)
Title: Variable length code conversion method
Inventor: MIKAMI FUMIYUKI
IPC: H03M7/46
Filed: 1988-03-01
Abstract: PURPOSE:To obtain a code with detecting window width (TW) increased by 20% and the maximum magnetization inversion interval (Tmax) decreased by 10% compared with that of an on-going (2, 7) RLL code by selecting a code word limiting the number of run of '0' at the start and end of the code word and possible to be decoded uniquely. CONSTITUTION:The number of run of '0' of a binary code word string with the minimum data length (m)=2, the minimum code word length (n)=5, the number of code word length rmax=2, and connecting the code words after conversion with each other is (d, k)-limited to a value >=1 and <=5. A condition as usable as the code word in such variable length code is selected by three conditions: the condition to satisfy (d, k) limitation in one code word, the one to satisfy the (d, k) limitation even when the code words are connected with each other, and the one possible to discriminate the boundary of the code word correctly and to be decoded uniquely, and in addition to that, it is possible to obtain the code with the TW increased by 20% and the Tmax reduced by 10% compared with that of the on-going (2, 7) RLL code by allocating the code word with a large number of '1' in the code words so as to reduce an average magnetization inversion interval, and to reduce the influence of the fluctuation of a time base in digital recording with high density, etc.
Patent JP-S59173508-A (JP)
Title: Electric power generation unit by use of two-phase flow turbine
Inventor: YAMAOKA KEIJIROU
IPC: F03G7/04
Filed: 1983-03-24
Abstract: PURPOSE:To miniaturize an installation without use of a pressurizing pump by separating a two-phase flow into steam and hot water by means of a rotary separation type two-phase flow turbine and supplying the separated hot water to a direct heat exchanger in a binary generation set by making use of terrestrial heat. CONSTITUTION:A terrestrial heat two-phase flow H is supplied to a two-phase flow turbine 21 by piping 20, and separated into steam S and hot water W by driving said turbine. Then, steam S is supplied from piping 24 to an indirect heat exchanger 22 to heat a heat exchanging element 26. On the contrary, the hot water W is supplied to a direct heat exchanger 23 by means of piping 25 to permit said direct heat exchanger to exchange heat with a low boiling point medium L to heat this, allowing a steam L' of the low boiling point medium L to be yielded. In the direct heat exchanger 22, the low boiling point medium L passing through a heat exchanging element 27 is heated with the steam S to produce the steam L'. Thus, after this steam L' joins the steam L' via the direct heat exchanger 23, they are supplied to a turbine 29 to drive this, allowing a dynamo 30 to produce electric power.
Patent JP-S62217499-A (JP)
Title: Controller for camera
Inventor: AOYAMA KEISUKE
IPC: G03B13/36
Filed: 1986-03-05
Abstract: PURPOSE:To improve the reliability of an EEPROM for automatic focusing control over a camera by storing the EEPROM with data which includes an error correction code. CONSTITUTION:The electrically erasable programmable fixed value memory (EEPROM) is stored with data which includes an inspection bit as the error correction code and even if there is an error at the time of reading, the read data is decoded into correct data. For example, data is stored in a memory device 3 after inspection bits (c1-c3) are added through an inspection bit generating circuit 2a, etc., and information bits 7 having no error are outputted through a syndrome generating circuit 4a, an error position specifying circuit 5a, an error correcting circuit 6a, etc. Consequently, even if data has an error when read out of the EEPROM, it is corrected, so the reliability of the data storage is improved.
Patent JP-S60191911-A (JP)
Title: Swinging type pallet transferring device
Inventor: HIRANO MASAMI
IPC: B65G21/14
Filed: 1984-03-13
Abstract: PURPOSE:To transfer a pallet from one pallet conveyor to another pallet conveyor by using a belt conveyor as a conveying means, which makes looped swinging motion forming a convexly inclined plane on the top surface. CONSTITUTION:A looped conveying means 1 which makes swinging motion, is supported by a swinging board 10 which forms a convexly inclined plane on the top surface, which has a fulcrum 11 for swinging motion, nearly at its center. A motor 9 for driving the conveying means 1 is fixed to the swinging board 10, while an actuator 14 gives swinging motion to the swinging board 10. And, by using a belt conveyor as the conveying means which makes looped swinging motion forming a convexly inclined plane on the top surface, the captioned device with a simple construction and a low cost, which can transfer a pallet (d) from one pallet conveyor (a) to another pallet conveyor (b) while keeping the pallet (d) horizontally, can be obtained.
Patent JP-H05213814-A (JP)
Title: Optically active citronellic acid derivative and its production
Inventor: HONDA TOSHIO
IPC: C07C59/42
Filed: 1992-02-04
Abstract: PURPOSE:To provide a new optically active citronellic acid derivative which is a precursor of optically active gamma-lactone and useful as a raw material for pharmaceuticals, agricultural chemicals, perfumes, etc. CONSTITUTION:The compound of formula I [R<1> is H or OH-protecting group; X is OR<2>, SR<2> or NR<2>R<3> (R<2> and R<3> are H, alkyl or (substituted) phenyl); dotted line represents that the compound may be a mixture of steric isomers or may have arbitrary steric configuration] and its antipode, e.g. (3S,4S)-4-hydroxy-3,7- dimethyl-6-octenoic acid. The compound can be produced by the reducing cleavage of a cyclopentane derivative of formula II or its antipode.
Patent JP-S51123467-A (JP)
Title: Belt-tension adjuster of horizontal engine
Inventor: NISHIDA TSUYOSHI
IPC: F16H7/12
Filed: 1975-04-19
Abstract: PURPOSE: A belt tension adjuster of horizontal engine easier and safer operation in which a belt is loosened always at the engine starting and cranking is facilitated. 
     COPYRIGHT: (C)1976,JPO&Japio
Patent JP-S60193787-A (JP)
Inventor: NANBA YOSHIHIDE
IPC: B62H1/02
Filed: 1984-03-15
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-S57162999-A (JP)
Title: Shipboard generator plant
Inventor: TSURUI NOBUKATSU
IPC: H02P11/06
Filed: 1981-03-31
Abstract: PURPOSE:To obtain an AC power of prescribed frequency without necessity of phase regulator by supplying the output of an axial generator driven by a main propulsion engine through a frequency converter to an AC motor for driving a shipboard generator. CONSTITUTION:The propeller shaft 2 of a main propelling engine 1 is connected to the drive shaft 5 of an axial AC generator 6 through an accelerating gear 4. The output of the generator 6 is converted to the prescribed frequency AC by a thyristor frequency converter 7, and is then supplied to an AC motor 8 for driving a shipboard generator 9. In this manner, an inexpensive shipboard generator plant can be obtained with less maintenance without high frequency noise.
Patent JP-S59174007-A (JP)
Title: Feedback type amplifying circuit
Inventor: HAYAKAWA MASAHIRO
IPC: H03F1/30
Filed: 1983-03-23
Abstract: PURPOSE:To obtain a feedback type amplifying circuit having an optimum noise index despite a single power supply system by adding a source resistance and a source by-pass capacitor to a field effect transistor. CONSTITUTION:A field effect transistor FETQ contains a feedback resistance Rf and a feedback capacitor Cf. At the same time, a gate resistance Rg is provided between the gate and the earth of the FETQ. Then a source resistance Rs and a source by-pass capacitor Cs are put between the gate and the source of the FETQ. Thus the minus voltage, i.e., the gate bias voltage is generated between the gate and the souece of the FETQ. Thus it is possible to control properly the working point of the FETQ by selecting properly the value of the resistance Rs and then applying the set gate bias voltage to the gate of the FETQ. In such a way, a feedback type amplifying circuit having an optimum noise index can be obtained even when a single power supply system.
Patent JP-H11248947-A (JP)
Title: Asymmetric directional coupler type wavelength filter
Inventor: HAN GOKON
IPC: G02B6/12
Filed: 1998-02-27
Abstract: PROBLEM TO BE SOLVED: To obtain a polarization independent asymmetric directional coupler type wavelength filter by forming a ridge optical waveguide having specified core thickness and core width. SOLUTION: The filter consists of vertical coupling of an ARROW optical waveguide 4 as a lower optical waveguide and a ridge optical waveguide 5 as an upper optical waveguide. The cores of the ARROW type optical waveguide 4 and the ridge optical waveguide 5 consist of a mixture glass of Ta2 O5 /SiO2 . The cross section of the ridge optical waveguide 5 is a square and its core thickness and core depth are designed in such a manner that the double refraction of the lower waveguide is same as the double refraction of the ARROW type optical waveguide 4. The equiv. refractive indices of the ARROW type optical waveguide 4 and the ridge optical waveguide 5 for the both of TE polarized light and TM polarized light coincide only at one center wavelength. Therefore, the obtd. filter shows no dependence on polarized light.
Patent JP-H08248314-A (JP)
Title: Zoom lens
Inventor: SHIBAYAMA ATSUSHI
IPC: G02B13/18
Filed: 1995-03-08
Abstract: PURPOSE: To provide a wide angle zoom lens for a single lens reflex camera. CONSTITUTION: This zoom lens comprises, in order from the object side, at least a first lens group G1 having a negative refractive power, a second lens group G2 having a positive refractive power, a third lens group G3 having a positive refractive power and a fourth lens group G4 having a negative refractive power at the time of zooming from the wide-angle end to the telescopic end, a distance between the first lens group G1 and the second lens group G2 is narrowed, a distance between the second lens group G2 and the third lens group G3 is changed and a distance between the third lens group G3 and the fourth lens group G4 is widened.
Patent JP-H01222238-A (JP)
Title: Flashing controller
Inventor: INOUE TOKUHIRO
IPC: G03B7/17
Filed: 1988-03-01
Abstract: PURPOSE:To prevent misoperation by providing a flash light forced emission setting member and a flash light emission inhibition setting member on the front part of a camera main body part and arranging the flash light emission inhibition setting member more closely to a flash light emission part than any other setting member. CONSTITUTION:A light emission inhibiting operation part 4 as the flash light emission inhibition setting member for setting the light emission of a flash light emission part 3 so that it may be forcedly inhibited and a light forced emitting operation part 5 as the flash light forced emission setting member for setting the light emission of the flash light emission part 3 so that it is forcedly performed are provided on the right periphery of a lens barrel part 6, at the time of being viewed from a front side, on the front of the camera main body 1. The light emission inhibiting operation part 4 is arranged more closely to the flash light emission part 3 than the light forced emitting operation part 5. Therefore, the operations of the respective setting members can be easily performed when it is desirable to inhibit the emission of flash light or to forcedly perform the light emission. Thus, setting can be instantaneously performed and forgetting to set or forgetting to reset occurs little, then the misoperation can be prevented.
Patent JP-H06262211-A (JP)
Title: Mill for plate
Inventor: SHIRAISHI TOSHIYUKI
IPC: B21B29/00
Filed: 1993-03-09
Abstract: PURPOSE:To reduce a roll mark and spalling generated on a work roll by making the barrel length of a divided backup roll near the center of a work roll longer than the barrel length of a divided backup roll near the end of the work roll. CONSTITUTION:A mechanism supporting a work roll 1 by backup rolls 20A, 20B, 20C, 20D, 30A, 30B, 30C divided into seven parts in the axial direction is provided in at least one of upper and lower roll assemblies. An independent load detecting device and a press-down device are arranged on each divided backup roll and the barrel lengths of divided backup rolls near the center part of a set of rolls in an axial direction, e.g. rolls 30B, 20B, 20C are made longer than the barrel lengths of the divided backup rolls near the end parts of a set of rolls in an axial direction, e.g. rolls 20A, 20D. As a result, since the plate crown and shape of a rolled stock 13 during rolling can be detected without time lag, the control accuracy of the plate crown and shape of the rolled stock 13 is greatly improved. Besides, the roll mark and spalling generated in the work roll 1 are reduced and surface flaws can be prevented from occurring.
Patent JP-H07255999-A (JP)
Title: Catalytic combustion iron
Inventor: IDA HARUO
IPC: D06F75/26
Filed: 1994-03-18
Abstract: PURPOSE:To enhance the safety by a method wherein wrinkles of clothes or the like are smoothed by utilizing heat obtained by effecting catalytic combustion of liquefied fuel gas and when a combustion chamber has been abnormally heated, catalytic combustion is stopped. CONSTITUTION:Liquefied fuel gas in a fuel tank 3 provided in an iron body 1 is vaporized and blown off from a nozzle 8, and the fuel gas is mixed with air in a mixing device 9 and fed to a combustion chamber 10, where catalytic combustion of the gas is effected by catalyst 10a. When the chamber 10 has been abnormally heated and temperature of a heat sensitive body 40 composed of a constant-temperature fusible metal has exceeded a specific temperature, a cylindrical body urged by a spring device 43 crushes the body 40 and a second valve body 7 is closed and also a suction part 9a is closed, so that feeding the mixed gas to the chamber 10 is stopped, thereby stopping the catalytic combustion.
Patent JP-H05250002-A (JP)
Title: Feed forward control system
Inventor: FUJIBAYASHI KENTARO
IPC: G05B11/32
Filed: 1992-03-05
Abstract: PURPOSE:To change a feed forward coefficient while following up the change of a work shape. CONSTITUTION:An interpolator 41 inputs a command Pi and outputs an output pulse Pa. An arithmetic means 43 calculates a feed forward coefficient alpha by inputting the command Pi and an error amount 42. A position feedback pulse Pf is subtracted from the output pulse Pa and outputted as a gain input pulse Pb by an adder 51. The gain input pulse Pb is multiplied just by a position loop gain Pg and outputted as a gain output pulse Pc by a proportional element 52. The output pulse Pa is differentiated by a derivative coefficient S, multiplied with the feed forward coefficient alpha and outputted as a feed forward pulse Pd by a feed forward element 54. The gain output pulse Pc and the feed forward pulse Pd are added and outputted to a servo motor 60 as a velocity command Vc by an adder 53.
Patent JP-H09241181-A (JP)
Title: Production of carbonylated compound
Inventor: SONODA NOBORU
IPC: C07C67/36
Filed: 1996-03-06
Abstract: PROBLEM TO BE SOLVED: To efficiently obtain the subject compound in good selectivity by carbonylating an organic halogen compound with CO without substantially using a metal catalyst. SOLUTION: A reaction system comprising at least one compound comprising CO, an organic halogen compound having carbon-halogen bond (preferably an organoiodine compound) and at least one compound selected from an alcohol, water ammonia and an amino is irradiated with light in the presence of a base under CO partial pressure of >=2 atmospheric pressure to provide the objective corresponding carbonylated compound. The organic halogen compound, preferably having hydrogen bonded to an sp<3> carbon at β position of a halogen is carbonylated in good selectivity.
Patent JP-S60192860-A (JP)
Title: Piston for internal-combustion engine
Inventor: KANDA MUTSUMI
IPC: F02F3/22
Filed: 1984-03-14
Abstract: PURPOSE:To prevent the deterioration of durability due to the thermal fatigue of a piston ring by forming the fin-shaped ribs onto the side peripheral edge part of a vacant part for feeding cooling oil which is formed onto the top wall part of a piston, thus preventing the concentration of thermal flow onto the outer peripheral wall part of the piston. CONSTITUTION:A vacant part 10 for feeding cooling oil is formed at the top wall part of a piston. Fin-shaped ribs 11 which extend in the radial direction of the piston and connect the wall surfaces opposed each other in the direction of the axis line of the piston are formed onto the side peripheral edge part of the vacant part 10. Therefore, heat can be transmitted from the top wall part to the piston boss part and the skirt part, and the concentration of thermal flow onto the outer peripheral wall part of the piston is prevented.
Patent JP-H01223607-A (JP)
Title: Magnetic head
Inventor: NISHIMURA MASARU
IPC: G11B5/187
Filed: 1988-03-02
Abstract: PURPOSE:To make an overwrite characteristic satisfactory by forming a groove in the track width direction on the sliding surface to a magnetic recording medium in the vicinity of a gap of a core, so that information can be recorded deeply in the magnetic recording medium even when the gap length is small. CONSTITUTION:By allowing a recording current to flow to a coil 6, a core 7 is excited and a magnetic path is formed. This magnetic path becomes a leakage flux 9 in a gap 4 part and passes through a magnetic recording medium 10, and by an edge part in the rear of the gap 4, information is recorded. In this case, a magnetic flux of the part which has become narrow by a groove 8 of the core 7 is saturated, and from a side of the groove 8, as well, the leakage flux 9 is generated, and information can be recorded into a deeper part of the magnetic recording medium 10. At the time of reproduction, the part which has been saturated at the time of recording of the core 7 is not saturated, therefore, this recorded information is reproduced only by the gap 4 in the same way as a regular head. Accordingly, even when the gap length has become small by high density recording by only a recording and reproducing head, a satisfactory overwrite characteristic is obtained.
Patent JP-H05250618-A (JP)
Title: Production of metallic terminal board for rotary head
Inventor: TANIGUCHI MASATO
IPC: G11B5/127
Filed: 1992-03-05
Abstract: PURPOSE:To obviate the generation of a shear drop in a head chip mounting surface by blanking the end side at the front ends of a terminal board to be mounted with a head chip from a pattern forming side in a first blanking stage. CONSTITUTION:Conductive patterns are formed via an insulating adhesive layer 3 on a metallic substrate 2 and this substrate is blanked to a terminal board shape and is worked, by which the metallic terminal board 18 for a rotary head is formed. The end side at the front end of the metallic terminal board 18, to which side the head chip 9 is to be mounted, is blanked from the pattern forming side in the first blanking stage. The parts exclusive of the end side are blanked from the side of the metallic substrate 2 in a second blanking stage. As a result, the end side 11 of the front end 8 of the terminal board 18 to be mounted with the head chip 9 is blanked from the pattern forming side at this front end in the first blanking stage and, therefore, the generation of the shear droop on the surface 8a on the head chip mounting side does not arise. Then, the adhesion area with the head chip 9 is sufficiently assured and the strength of adhesion of the head chip 9 is stabilized.
Patent JP-H02227852-A (JP)
Title: Synchronous driving method for reproducing device
Inventor: MARUYAMA FUMIYASU
IPC: G11B27/28
Filed: 1989-02-28
Abstract: PURPOSE:To easily synchronously drive two first and second devices at different frame cycles by forming a new frame number in the same format as the frame number of a first time code and a new frame cycle by means of a second time code reproduced from the recording medium of a second device. CONSTITUTION:In a VTR 1 and a DAT 2 respectively as the first and second devices, based on the frame number of the second time code obtained from a recording medium 26 of the second device 2, the converting frame number corresponding to the frame number of the first time code is determined, and the new frame cycle corresponding to the first frame cycle is determined. Further by sending the converting frame number in the first cycle, a signal corresponding to the frame difference between the first and second devices 1 and 2 is obtained, and when the frame difference is detected, the first and/or second devices 1 and 2 are controlled so as to cancel it. Thus the first and second devices 1 and 2 at the different frame cycles can be easily synchronously driven.
Patent JP-S61208158-A (JP)
Title: Personal computer
Inventor: HAYASHI SHIYUNTA
IPC: G06F13/16
Filed: 1985-03-12
Abstract: PURPOSE:To reduce a mechanically movable part, to prolong its life and improve its reliability, and to attain high-speed access by permitting a ROM to serve as a floppy disk drive. CONSTITUTION:When a personal computer 1 is started up, a CPU 2 sends out a command for reading a program out of a floppy disk and transferring the program to the main storage 3 of the computer 1 to a ROM 10 corresponding to a floppy disk interface through a bus 4. The control circuit 11 in the ROM device 10 corresponding to the floppy disk interface decodes the received command to read a program stored previously in a ROM 12 instead of the program stored on the floppy disk and transfer the program to the main storage 3.
Patent JP-S55143399-A (JP)
Title: Cleaner arresting device for tubular heat exchanger
Inventor: OOTAKE KATSUMOTO
IPC: F28G1/12
Filed: 1979-04-23
Abstract: PURPOSE: To reduce a pressure loss in arresting the cleaner by providing fluid outlets and cleaner extracting tubes to the pipe wall side.  
     CONSTITUTION: The cleaner arresting device throws a cleaner in the cooling water to clean the inside of the heat-tranfer pipe of the heat exchanger, arrests the cleaner and throws it in the cooling water again. And a pair of main grids 12 that throttle the cleaner passage 14 is provided to the passage 14. Also another pair of subgrids 13 that throttle the passage 14 still further is pressed and incorporated in the lower part of the main grids 12. The cleaner extracting tubes 19 are connected to the respective outlets 20 formed in the lower part of the main grids 12 and subgrids 13. In such a cleaner arresting device, since there exists no obstacle in the central part wherein the flow rate in the pipe is greater, a pressure loss can be reduced in arresting the cleaner. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S53135950-A (JP)
Title: Novel phenylpropionic acid ester derivatives
Inventor: NODA KANJI
IPC: A61P25/04
Filed: 1977-04-27
Abstract: PURPOSE: Phenylpropionic acid ester derivative I (n is 0, 1; R is H, lower alkyl,; A is 5-6C cyclic alkyl, indanyl, aryl); e.g. 2-(p-isobutylphenyl)-propionic acid-m-trifluoromethylphenyl ester. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S51124438-A (JP)
Title: Reinforced phto-fibre
Inventor: ISOMURA AKIHIKO
IPC: G02B6/44
Filed: 1975-04-23
Abstract: PURPOSE: To reduce losses during conveying by covering protective coating over Jelly-like Moisture-proof Mixture around Glass Fibre for Photo-Conveying. 
     COPYRIGHT: (C)1976,JPO&Japio
Patent JP-S57162947-A (JP)
Title: Rotor for superconductive rotary electric machine
Inventor: MIYAZAKI MASAYUKI
IPC: H02K55/04
Filed: 1981-03-31
Abstract: PURPOSE:To enhance the reliability of a superconductive rotary electric machine by containing a superconductive field coil in the slot of a coil mounting shaft, and then securing the coil with a wedge made of titanium alloy, thereby obtaining surfficient bending resistant stress even at cryogenic temperature time. CONSTITUTION:After a superconductive field coil 3 is contained in the slot of a coil mounting shaft 2, a wedge 19 made of titanium alloy is inserted fixedly to the hole of the slot. The titanium alloy preferably uses Ti-5Al-2.5Sn alpha phase titanium alloy.